Bilangan 18:17-18

18:17 But you must not redeem the firstborn of a cow or a sheep or a goat; they are holy. You must splash ¹  their blood on the altar and burn their fat for an offering made by fire for a pleasing aroma to the Lord. 18:18 And their meat will be yours, just as the breast and the right hip of the raised offering is yours.

[18:17]  ¹ tn Or “throw, toss.”